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If you want to perform parallel (concurrent) read and write operations on your databases, you must use the client/server architecture or run BaseX as web application. You can safely open a database in different JVMs (Java virtual machines) for read-only access, and you will not encounter any problems when reading from and writing to different databases, but update operations from different JVMs to the same database will be rejected or may even lead to corrupt databases.
For example, if you only read data, you can easily run several clients (standalone, GUI, database clients) at the same timein parallel. If you update your data, however, you shouldn’t use the GUI or a standalone instance at the same time.
More details on concurrency can be found on the [[Transaction Management]] page.
=Startup=
First of all, [https://basex.org/download get a fresh copy of BaseX] from our homepage.
BaseX is platform-independent and runs on any system that provides an implementation of the [https://www.java.com Java Runtime Environment (JRE)]:
